公开(公告)号：CA1156710A

公开(公告)日：1983-11-08

申请号：CA371923

申请日：1981-02-27

Applicant: IBM

Inventor： FILLMORE GARY L ,  MARTIN VAN C ,  REAM GREGORY L

IPC: B41J2/075 ,  B41J2/02 ,  B41J2/115 ,  B41J2/12 ,  G01D15/18 ,  B41J3/04

Abstract: In a multinozzle ink jet printing system, a closed loop servo system drives the drop generator so that the distance between the streams at which ink droplets are detached is maintained at an optimum range. One or more sensors are positioned downstream from the multinozzle plate of the ink jet printing system. The sensors sense the flight time of ink droplets and output signals which are developed into a variable voltage for controlling the crystal generator.

公开(公告)号：CA1156711A

公开(公告)日：1983-11-08

申请号：CA372753

申请日：1981-03-11

Applicant: IBM

Inventor： LAMMERS GERALD B ,  REAM GREGORY L

IPC: B41J2/075 ,  B41J2/125 ,  B41J3/04 ,  G01D15/18

Abstract: A uniform velocity and/or time of flight profile across the jet streams of a multinozzle aspirated ink jet printer is maintained by a closed loop servo system. The servo system includes a drop charge sensor which senses the time of flight of charge droplets in the streams and generates a controlled signal. The signal is utilized by a controller means to generate controlled voltages. The voltages are used to adjust the velocity of a motor/blower apparatus which supplies air to the aspirated ink jet printer. B09-79-036